Air-diffuser for fans.



(Nq Modal.)

Fig.l.

M. D. DEGGE.

AIB DIFFUSEB FUR FANS.

(Application led Oct. 4, 1900.)

nnumlsi mulini CD plllu Patented oct. l, 19m.

` 2 Sheets-Sheet l.

M. D. DEGGE.

AIB DIFFUSER FR FANS.

(Application mea oct. 4, 1900.) (No Model.) 2 Sheets-Sheet 2.

No. 683,447. Patented Oct. I, |90l.

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UNITED STATES PATENT OFFICE.

MIDDLETON D. DEGGE, OF IST. LOUIS, MISSOURI.

AIR-DIFFUSER FOR FANS.

SPECIFICATION forming part of Letters Patent No. 683,447,0lated October 1, 1901. Application filed October 4, 1900. Serial No. 31,982. (No model.)

ings, forming part of this specication.

The object of my invention is to provide means for delecting the currents of air produced by an ordinary rotary fan, so that the same may be distributed evenly throughout a room.

My invention consists, in part, in the combination, with a rotary fan, of a plurality ot' i deiiecting devices, each consisting of one or more blades, and means for independently adjusting said defiecting devices to diffuse the currents of air from said fan.

Myinvention also consists in various other novel features and details of construction, all of which are described in the following specification and pointed out in the claims aiiixed hereto.

In the accompanying drawings, which illustrate apparatus made in accordance with my invention, Figure 1 is a side view, Fig. 2 is a Y front view, and Fig. 3 is a top plan view, of the delector. Fig. t is a View similar to Fig. 3, but showing the parts in a dierent position. Fig. 5 is an enlarged top plan view of half of the deflector, showing a slight modification in the construction. Fig. 6 is an enlarged detailed view. Fig. 7 is a top plan View of a modified form of defiector. Fig. 8 is a front view of the deflector shown in Fig. 7. Fig. 9 is a top plan view of a modification, and Figs. 10 and 11 are enlarged detailed views of the modification shown in Fig. 9.

Like marks of reference refer to similar parts in the several views of the drawings.

15 is the motor of an ordinary electric fan, and 16 is the fan proper, which is driven by said motor. The fan 16 is surrounded by a guard 17 in the usual manner, and the motor 15 is mounted on a pedestal or stand 18.

20 is the frame of the deflector, which is rigidly secured in the end 2l of a base 22, upon which the pedestal of the motor 15 rests.

Pivoted in the frame 2O are a number of defleeting-blades 23, which are arranged in two groups at opposite sides of the center of the fan. The tops of each of these groups arc connected by an adjusting-bar 24, one end of which is provided with a pin 25, passing through a slot 26 in a plate 27, secured to the top of the frame 20. Each of the pins 25 is provided with a milled nut 28, by means of which the adj usting-bar 24. is secured in any desired position. By loosening the milled nuts 28 the pin 25 can be slid in the slot 2G, thus moving the adj Listing-bar 24 longitudinally and varying the angle ofthe detlectingblades 23, as is best shown in Fig. 4.

In the modification shown in Fig. instead of using a single adjusting-bar 24:, connecting all the blades of a set, I use two or more of said bars 24, provided with slots 29 in one of their ends, and provide the blades 23 with pins 30, passing through said slots, and milled nuts 3l, engaging said pins 30. By this means I am enabled to set the various de` Heating-blades 23 of each set at different angies, as shown in Fig. 5, which enables the air to be more evenly distributed throughout a room.

In the modification shown in Figs. 7 and 8 I form the frame of the deiiector in two parts 35, which are hinged together at the top by a link 36 and at the bottom are pivotally carried by the front end 21 of the base 20. A set-screw 37 is provided forsecuring the lower parts of the frames in the desired position. The upper parts of the frame are provided with a curved strip 38, in which are formed slots 39, through which project pins 40, provided with milled nuts 4.1. The deflectingblades 23 are rigidly secured in the parts 35 of the delecting-frame. It will be readily seen that by loosening the milled nuts 41 and the set-screw 37 the parts 35 of the fra-me can be adjusted at an angle, thus consequently adjusting the deilecting-blades 23 at a corresponding angle.

In the modification shown in Figs. 9 to 1l the defiectingblades 23'instead of being arranged in a frame are connected directly to the guard 17 of the fan 16. The blades may be attached in any suitable manner; but I prefer to use clamps 43, Fig. 10, which are secured to the wires of the guard by means gle at which the blades are placed.

of set-screws 44. Pivotally connected to each of the clamps 43 is a ball 45, through which passes a rod 46, to which the detlecting-blade 23 is secured in any suit-able manner, such as soldering or brazing. This allows the blades to be moved, with the rod 46 as an axis. In order to adjust the blades to the desired angle, I provide each set of blades with an adjusting-bar 47, provided in its end with a slot 48, through which passes a stud 49, engaging with a milled nut 50.

In the operation of mydevice when the fan 16 is started in motion the currents of air generated by the blades of said fan strike against the detlecting-blades 23, and are thus de- Iiected laterally at both sides of the fan, the amount of deflection depending upon the au- In case it is desired to leave the air unaffected by the detlector the blades can be placed straight in the frame, as shown in Figs. 2 and 3. The deiiector will then have practically no effect upon the currents ot' air. In the form shown in Figs. l to 4 the blades are adjusted by means of the milled nuts 2S, while in that shown in Figs. 7 and 8 the parts of the frame itself are adjusted at an angle, as has been previously described.

While I have shown the detlecting-biades as straight flat blades, I do not wish to limit myself to such form of blades, as the form of the blades, as well as the general design of j the device, may be greatly varied without departing from the spirit of my invention.

Having fully described myinvention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. The combination with a rotary fan, of a plurality of deiiecting devices, each consisting of one or more blades, and means for independently adjusting said deiecting devices to diffuse the currents of air from said fan.

2. The combination. with a rotary fan, of a plurality of deiiecting devices, each consisting of one or more blades vertically arranged in front of said fan, and means for independently adjusting said deflecting devices to diffuse the currents of air from said fan.

3. The combination with a rotary fan, of a frame arranged in front of said fan, a plu- 5o rality of detlecting devices carried by said frame, each consisting of one or more blades, and means for independently adjusting said deliecting devices for diffusing the currents of air from said fan.

4. The combination with a rotary fan, of a :frame arranged in front of said fan, a plurality of detlecting devices carried by said frame, each consisting of one or more blades vertically arranged, and means for independ- 6o ently adjusting said detlecting devices to diffuse the currents of air from said fan.

, 5. In a deflector for rotary fans, the cornbination with a frame, of a plurality of delecting-blades pivotally mounted in said frame, and means for independently adjusting said blades at various angles.

G. In a defleetor for rotary fans, the combination with aplurality of deIlecting-blades pivotally mounted in two sets, means for ad- 7o justing said sets of blades in opposite directions, and means for independently varying the individual blades of said sets.

In testimony whereof I have hereunto set my hand and affixed my seal in the presence of the two subscribing witnesses.

MIDDLETON D. DEGGE. [1.. s]

Witnesses:

JAMES H. BaYsoN, W. A. ALEXANDER. 

